|Publication number||US8152567 B2|
|Application number||US 12/786,463|
|Publication date||Apr 10, 2012|
|Filing date||May 25, 2010|
|Priority date||May 25, 2009|
|Also published as||US20100297882|
|Publication number||12786463, 786463, US 8152567 B2, US 8152567B2, US-B2-8152567, US8152567 B2, US8152567B2|
|Inventors||Li-Chun Wu, Chao-Tung Huang, Yong-Chun Xu, Jian-She HU|
|Original Assignee||Hon Hai Precision Ind. Co., Ltd.|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (18), Referenced by (7), Classifications (11), Legal Events (2)|
|External Links: USPTO, USPTO Assignment, Espacenet|
This patent application is related to a pending U.S. patent application Ser. No. 12/769,686, filed on Apr. 29, 2010, and entitled “MODULAR JACK CONNECTOR HAVING IMPROVED MAGNETIC MODULE”, which is assigned to the same assignee with this application.
1. Field of the Invention
The present invention relates to a modular jack connector, and more particularly to a modular jack connector having improved magnetic module having improved characteristics under a simple configuration.
2. Description of Related Art
U.S. Patent Application Publication No. 2009/0176408 published on Jul. 9, 2009 discloses an electrical connector comprising an insulative housing defining a cavity, a contact module received in the insulative housing, a shielding cage mounted on the insulative housing. The contact module comprises a paddle board having a first and a second side faces, a plurality of contacts mounted at the first side face of the paddle board and electrically connected with the paddle board, a plurality of magnetic modules mounted on the second side face of the paddle board, and a converting module carrying a plurality of converting contacts mounted at the second side face of the paddle board. The paddle board has a plurality of through holes extending through the first and second side faces. The converting contacts of the converting module are inserted through the through holes. The magnetic module comprises a magnetic core and a plurality of wires winding around the magnetic core.
The magnetic module is formed by winding a plurality of coils around a magnetic core. Such a magnetic module is then soldered to the paddle board directly or through a base with conductive pins.
U.S. Patent Application Publication No. 2008/0186124 published on Aug. 7, 2008 discloses a wire-less inductive device. The inductive device comprises a magnetic core embedded in top and bottom headers or substrates, a plurality of through-hole vias or a plurality of connecting elements disposed around the magnetic core.
U.S. Patent Application Publication No. 2007/0111598 published on May 17, 2007 discloses a receptacle assembly having a substrate and a plurality of electrical components, e.g., magnetic elements, resistive elements, capacitive elements disposed on the substrate.
Hence, a modular jack connector having improved magnetic module is highly desired.
Accordingly, an object of the present invention is to provide a modular jack connector having an improved magnetic module taking less space and having improved characteristics.
In order to achieve the object set forth, a modular jack connector in accordance with the present invention includes an insulative housing defining a receiving cavity, a contact module received in the receiving cavity of the insulative housing. The contact module includes a paddle board having opposite first and second conductive layers and an insulative layer sandwiched between the first and second conductive layers. The first conductive layer is formed with two conductive sections. The paddle board defines a plurality of vias extending therethrough. The contact module includes two transformers, a number of contact terminals and a converting module. The transformer includes a magnetic core embedded in the paddle board, and a number of PCB layout traces distributed in the paddle board and including a first group of PCB layout traces having one group of tips extending to a position adjacent to corresponding magnetic core to form a magnetic field and another group of tips connected to the conductive section, and a second group of PCB layout traces having one group of tips extending to a position adjacent to corresponding magnetic core to form a magnetic field and another group of tips connected to the vias. The common mode chokes are surface mounted on the conductive section. The contact terminals are attached to the second conductive layer of the paddle board. The converting module is secured to the first conductive layer of the paddle board and having a number of converting terminals inserting through said vias.
The transformers are embedded in the paddle board via PCB layout traces to improve filter effect. The common mode chokes are surface mounted on the paddle board to save space. The filter circuit capable of reducing noise interference has been established in the modular jack connector only via the paddle board only. Such a contact module has a simple configuration, takes less space and is able to obtain improved characteristics.
Other objects, advantages and novel features of the invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.
Reference will now be made in detail to the preferred embodiment of the present invention. Referring to
The transformer 27 includes a first set of primary pads 273 and a first set of secondary pads 274 alternately disposed in the first conductive layer 22 a, a second set of primary pads 275 and a second set of secondary pads 276 alternately disposed in the second conductive layer 22 c. The inner through holes 272 a are connected with the first set and second set of primary pads 273, 275, and the outer through holes 272 b are connected with the first set and second set of primary pads 273, 275 to constitute a primary coil of the transformer 27. Similarly, the inner through holes 272 a are connected with the first set and second set of secondary pads 274, 276, and the outer through holes 272 b are connected with the first set and second set of secondary pads 274, 276 to constitute a secondary coil of the transformer 27.
The plurality of traces 30 comprises a first group of traces connected to the transformers 27 and the second conductive pads 28 b, a second group of traces connected to the transformers 27 and the lower conductive holes 29 b, a third group of traces radiating from the transformers 27 and extending to a position adjacent to the fourth conductive pad 28 d. The first conductive pads 28 a are electrically connected with the third conductive pads 28 c.
The converting module 23 comprises a body portion 231 and a plurality of L-shaped converting terminals 232 secured to the body portion 231.
In assembling of the contact terminal 2, when the transformer 27 are imbedded in the paddle board 22, the common mode chokes 24 are soldered on the second conductive pads 28 b. The capacitor 26 is surface mounted on the fourth conductive pad 28 d. The resistor 25 is soldered on the third conductive pad 28 c. The contact terminals 21 are soldered on the first conductive pads 28 a. The converting module 23 is secured to the paddle board 22, with the converting terminals 252 inserting through the lower conductive holes 29 b. The traces 30 are therefore connected to the transformer 27, the common mode chokes 24, the resistor 25 and the capacitor 26 to constitute a filter circuit to reduce the noise interference.
In assembling of the electrical connector 100, the contact module 2 is assembled to the insulative housing 1, with the contact portions 211 of the contacts 22 retained in the cavity 12.
The pair of LEDs 3 are mounted in the inserting recesses 11 and the upper conductive holes 29 a. The plurality of USB terminals 3 are secured in the receiving port 13. The first and second shielding shells 51, 52 are mounted on the insulative housing 1.
The transformers 27 are embedded in the paddle board 22 via PCB layout traces 272-276, 30 to improve filter effect. The common mode chokes 24 are surface mounted on the paddle board 22 to save space. The filter circuit capable of reducing noise interference has been established in the modular jack connector 100 only via the paddle board 22 only. Such a contact module 2 has a simple configuration, takes less space and is able to obtain improved characteristics.
It is to be understood, however, that even though numerous characteristics and advantages of the present invention have been set forth in the foregoing description, together with details of the structure and function of the invention, the disclosure is illustrative only, and changes may be made in detail, especially in matters of shape, size, and arrangement of parts within the principles of the invention to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.
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|Cooperative Classification||H01R13/719, H01R12/724, H01R13/6466, H01R13/6633, H01R27/02, H01R13/6658|
|European Classification||H01R23/00B, H01R13/66D2, H01R13/66B6|
|May 25, 2010||AS||Assignment|
Owner name: HON HAI PRECISION INDUSTRY CO., LTD., TAIWAN
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:WU, LI-CHUN;HUANG, CHAO-TUNG;XU, YONG-CHUN;AND OTHERS;REEL/FRAME:024433/0001
Effective date: 20100510
|Oct 8, 2015||FPAY||Fee payment|
Year of fee payment: 4